Bug 403327

Summary: Preview Mode creates strange display when Transform effect (but not only) is applied ...
Product: [Applications] kdenlive Reporter: Enzo GD <enzo.gianvittorio>
Component: Video Effects & TransitionsAssignee: Vincent PINON <vpinon>
Status: RESOLVED DUPLICATE    
Severity: normal CC: fritzibaby
Priority: NOR Flags: fritzibaby: timeline_corruption+
Version First Reported In: 18.12.1   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Enzo GD 2019-01-17 21:25:18 UTC 
The “Preview Mode” of the “Track Compositing” does strange modification (cuts size of the clip etc...) of clips that have a “Transform” effect applied. it happens with Transform effect mainly with changed parameters like ratio in the W and H (size) ... 


STEPS TO REPRODUCE
1. apply a Transform effect (modify size W-H unlocking ratio..) to a clip in the timeline (Track Compositing)
2. then switch to "Preview Mode"
3. and the clip should change in size displaying only half of it or a portion .. modifying the size of its display... 

PS: but the problem does not limit to the Transform effect since other clips in other tracks change their position in the preview mode even if not having the transform effect applied .. (?) 


SOFTWARE/OS VERSIONS
Windows: 
MacOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 emohr 2019-01-28 17:28:11 UTC 
Do you have ticked „Distort“ in the transform effect? Be careful with switching the Track Compositing. See here: https://kdenlive.org/en/project/timeline-track-compositing/
Comment 2 Vincent PINON 2021-02-14 21:14:45 UTC 
Problem inherent to the preview "composite" transition

*** This bug has been marked as a duplicate of bug 401412 ***